Heater for printing presses



Jan. 26 1926. 1,571,174

E. J. WALLACE HEATER FOR PRINTING PRESSES Filed July 23, 1923 ATTORNEY Patented Jan. 26, 192%.

.PATENT orrie ELMEB J. WALLACE, OF FREEPORI, ILLINOIS.

HEATER FOR PRINTING PRESSES.

Application filed July 23, 1923.

To all whom it may concern.

Be it known that I, ELMER J. WALLACE, a citizen of the United States, residing at lfireeport, in the county of Stephenson and State of Illinois, have invented new and useful Improvements in Heaters for Printing Presses, of which the following is a specification.

This invention relates to heating attachments for printing presses, to facilitate the drying of the ink after printing, and an ob ject of the invention is to provide a heater, and automatic controls therefor which control the flow of gas to the heater, and consequently result in a material saving of the gas, in that the gas is only burning in a proper heating quantity when actually needed and which automatic control device further cuts oil the control of gas to the heater when the operation of the press is stopped.

Other objects of the invention will appear in the following detailed description taken in connection with the accompanying drawing wherein Fig. 1 is a perspective view illustrating the controls of the heater and showing a part of the heater.

F 2 is a perspective view of the heater. Fig. 3 is a section on the line of Fig. 1.

Referring more particularly to the drawings, the improved drying heater attachment tor printing presses comprises a burner 1 which is tubular or is formed from a pipe and is provided with a plurality 0]: relative ly small transversely openingperforations 2 through which the gas flows. The burner 1 has a guard 3 there over which is substantially U shaped in. cross section and which provides tlat horizontal side portions above and below the lnirner 1. The burn- 'ing gas, iss ing from the burner 1 strikes the under surface of the upper flat side at of the guard 3 and heats this guard, which guard further deflects the flames so as to properly dry the ink on the printed matter passing over the dryer or heater. The burner 1 has its end portions tree from the perforations 2 and supported by supports 5 and 6 each. of which is composed of a pair of blocks 7 connected in any suitable manner such as by bolts 8. The gas supplied to the burner 1 flows through the branch pipe 9 which has communication with the gas main or supply pipe 10. A regulating valve 11 is interposed in the branch pipe 9 and it Serial No. $53,330.

has an operating handle 12 associated there with for operating the valve 11 to control the supply of gas to the burner. The handle 12 is connected by a rod 13 to an arm 14-. The arm 14: is adjustably mounted upon a rod 15 and is held in adjusted positions by means oil a set screw 16. This rod 1-5 is a part of the automatic paper feeding mechanism of a conventional printing press, such for example, the Miller or Kelly press and when a sheet of printed matter is moved out 01 the press by means of the feeding mechanism including the rod 15 this rod, during operation, is moved in a longitudinal direction and during such movement imparts movement to the arm l t in thesame direction which will in turn rock the handle 12 to open the regulating valve 11 to permit the gas flow into the burner l to be increased to provide the proper drying of the printed matter as it passes over the heater or dryer.

After the printed matter has been passed over the dryer and the heater the press returns to its printing position, for printing a succeeding sheet, the rod 15 returns to its normal position which partially closes the regulating valve 11 and cuts down or reduces the flow of gas into the burner 1.

The flow of gas into the branch pipe 9 from the main 10 is controlled by the control valve structure 17 interposed in the con nection between the pipes 10 and 9. The operating handle 18 of the control valve 17 is pivotally connected to a bar 19, which bar is in turn pivotally connected as shown at 20 to a lever 214. The lever 21 is pivoted in termediate its ends to a supporting arm 22 which is connected in any suitable manner as shown at 23 to the side plates 23 ot a conventional printing press. A bar 2,: connects the lever 21 to a bell crank 25, which bell crank is pivotally supported by a suitable support 26 which is connected as shown at 27 to the side plates 23 of the printing press (not shown). irdjustable connection be tween the bell crank 25 and support 26 is provided to permit proper operating adjustments.

The bell crank 25 is in turn connected through a suitable coupling 27 to a foot con trolled device 28 or trip embodied in conventional printing presses for controlling the operation of the same so that the How of gas into the pipe 9 and consequently into the burner 1 will be controlled by operation of the trip 28 which in turn controls 0peration of the press so that when the operation of the press is arrested, the control valve 17 will be closed to cut off the supply of gas to the heater or dryer and when the trip is operated to start the press the valve 17 Will be open and the flow of gas to-the burner 1 will be controlled by the regulating valve 11.-

A pilot light is provided which is carried by the supporting structure 16 and extends partly into the guard 3. The pilot light 30 is always ignited so that upon starting of the press the gas flowing into the burner will be ignited. The pilot light 30 has connuunication with the supply pipe 10 above or outwardly of the control valve 17 through a suitable supply pipe 31 so that the supply of gas through the pilot light will not be affected by operation of the valves 11 or 17.

The supports 7 are maintained in their proper supporting position and are in turn rigidly supported by a suitable rod 32 which extends through the supports.

It is, of course, to be understood that the invention may be constructed in other manners and the parts associated in different relations and, therefore, I do not desire to be limited in any manner except as set forth in the claims hereunto appended.

Having thus described my invention what I claim is:

1. A drying heater attachment for printing presses comprising a burner, a substantially U-shaped guard over said burner, a control valve for controlling the flow of heat fuel to said burner, means connecting the control valve with the starting and stopping mechanism of a press for actuating said .valve, and presscontrol means for regulating the flow of fuel to the burner independently of said control valve.

2. A drying heater attachment for print ing presses comprising a burner, a substantially U shaped guard over said burner, a control valve for controlling the flow of fuel to the burner, a regulating valve for regulating the flow of gas through the burner, and means adapted to be operated by operation of a press for operating said fuel regulating valve.

A drying heater attachment for printing presses con'iprising a burner, a substantially U shaped guard over said burner, a control valve for controlling the flow of fuel to the burner, a regulating valve for regulating the flow of gas through the burner, means adapted to be operated by operation of a press for operating said fuel regulating valve, and means adapted to be operated by the control means of a printing press for operating said control valve.

4-. A drying heater attachment for print ing presses comprising a burner, a substantially U shaped guard over said burner, a control valve for controlling the flow of fuel to the burner, a regulating valve for regulating the flow of gas through the burner, means adapted to be operated by operation of a press for operating said fuel regulating valve, means adapted to be operated by the control means of a printing press for operating said control valve, and a pilot light associated with said burner.

In testimony whereof I affix my signature.

ELMER- J. WALLACE. 

